Imperial College London

DR CAMILLE PETIT

Faculty of EngineeringDepartment of Chemical Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 3182camille.petit Website

 
 
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Location

 

522ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

78 results found

Crake A, Christoforidis KC, Godin R, Moss B, Kafizas A, Zafeiratos S, Durrant JR, Petit Cet al., 2019, Titanium dioxide/carbon nitride nanosheet nanocomposites for gas phase CO<inf>2</inf> photoreduction under UV-visible irradiation, Applied Catalysis B: Environmental, Vol: 242, Pages: 369-378, ISSN: 0926-3373

© 2018 Elsevier B.V. In the field of photocatalysis and particularly that of CO2 photoreduction, the formulation of nanocomposites provids avenues to design a material platform with a unique set of structural, optoelectronic and chemical features thereby addressing shortcomings of single-phase materials and allowing synergistic effects. In this work, inorganic/organic composite photocatalysts for CO2 reduction comprised of titanium dioxide (TiO2) and carbon nitride nanosheets (CNNS) were synthesized using a hydrothermal in-situ growth method. Specifically, pre-formed CNNS were used to synthesize TiO2/CNNS heterostructures with control over the TiO2 facet formation. This synthesis approach improved the catalytic properties by increasing CO2 adsorption capacity and facilitating charge transfer. The materials were characterised by various spectroscopic, imaging, and analytical techniques to investigate their structural (from nano- to macroscale), chemical, and optical properties. TiO2 nanoparticles were efficiently grown on the CNNS. The CO2 adsorption capacity of the composites was measured, and they were tested for CO2 photoreduction under UV-Vis illumination with hydrogen as the reducing agent in a heterogeneous gas-solid system to combine CO2 capture and conversion into a single-step process. Catalytic tests were performed without adding any precious metal co-catalyst. The composites exhibited enhanced CO2 adsorption capacity and photocatalytic CO2 conversion compared to their constituent materials (> ten-fold increase) and outperformed the TiO2 P25 benchmark material. The TiO2/CNNS composite with more {001} TiO2 facets was the most catalytically active. Further investigations using transient absorption spectroscopy (TAS) revealed the control of facet formation improved interfacial transfer at the TiO2/CNNS junction. A photocatalytic mechanism was proposed based on the spectroscopic analyses as well as the CO2 adsorption, and CO2 conversion results.

JOURNAL ARTICLE

Bui M, Adjiman CS, Bardow A, Anthony EJ, Boston A, Brown S, Fennell PS, Fuss S, Galindo A, Hackett LA, Hallett JP, Herzog HJ, Jackson G, Kemper J, Krevor S, Maitland GC, Matuszewski M, Metcalfe IS, Petit C, Puxty G, Reimer J, Reiner DM, Rubin ES, Scott SA, Shah N, Smit B, Trusler JPM, Webley P, Wilcox J, Mac Dowell Net al., 2018, Carbon capture and storage (CCS): the way forward, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 11, Pages: 1062-1176, ISSN: 1754-5692

JOURNAL ARTICLE

Christoforidis KC, Syrgiannis Z, La Parola V, Montini T, Petit C, Stathatos E, Godin R, Durrant JR, Prato M, Fornasiero Pet al., 2018, Metal-free dual-phase full organic carbon nanotubes/g-C3N4 heteroarchitectures for photocatalytic hydrogen production, NANO ENERGY, Vol: 50, Pages: 468-478, ISSN: 2211-2855

JOURNAL ARTICLE

Evans A, Luebke R, Petit C, 2018, The use of metal-organic frameworks for CO purification, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 6, Pages: 10570-10594, ISSN: 2050-7488

JOURNAL ARTICLE

Papoulis D, Panagiotaras D, Tsigrou P, Christoforidis KC, Petit C, Apostolopoulou A, Stathatos E, Komarneni S, Koukouvelas Iet al., 2018, Halloysite and sepiolite -TiO2 nanocomposites: Synthesis characterization and photocatalytic activity in three aquatic wastes, MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, Vol: 85, Pages: 1-8, ISSN: 1369-8001

JOURNAL ARTICLE

Petit C, 2018, Present and future of MOF research in the field of adsorption and molecular separation, CURRENT OPINION IN CHEMICAL ENGINEERING, Vol: 20, Pages: 132-142, ISSN: 2211-3398

JOURNAL ARTICLE

Stafford J, Patapas A, Uzo N, Matar OK, Petit Cet al., 2018, Towards scale-up of graphene production via nonoxidizing liquid exfoliation methods, AICHE JOURNAL, Vol: 64, Pages: 3246-3276, ISSN: 0001-1541

JOURNAL ARTICLE

Crake A, Christoforidis KC, Kafizas A, Zafeiratos S, Petit Cet al., 2017, CO2 capture and photocatalytic reduction using bifunctional TiO2/MOF nanocomposites under UV-vis irradiation, Applied Catalysis B: Environmental, Vol: 210, Pages: 131-140, ISSN: 0926-3373

TiO2 nanosheets and metal-organic framework (NH2-UiO-66) were effectively coupled via an inā€situ growth strategy to form bifunctional materials for the combined capture and photocatalytic reduction of CO2 under UV–vis light irradiation. This was done to take advantage of the high CO2 adsorption capacity of the MOF and the photocatalytic properties of pre-formed TiO2 nanosheets in a single material. The prepared materials were thoroughly characterized using a variety of techniques. They were subsequently tested for CO2 adsorption and CO2 photocatalytic reduction using a heterogeneous gas/solid set-up to imitate both CO2 capture and fixation in a single process. The adopted synthesis process allowed the development of a tight interaction between TiO2 and NH2-UiO-66 forming a heterojunction, while maintaining both the high CO2 uptake and porosity of NH2-UiO-66. The nanocomposites were proven durable and significantly more efficient in reducing CO2 to CO than their single components. Photocatalytic activity was greatly affected by the nanocomposites composition with the optimum TiO2 content doubling the CO evolution rate compared with the pure TiO2. The improved photoactivity was assigned to the enhanced abundance of long lived charge carriers, as revealed by transient absorption spectroscopy (TAS). This most likely occurred due to the effective charge transfer via interface. A possible mechanism is discussed on the basis of the combined catalytic, spectroscopic and CO2 adsorption results.

JOURNAL ARTICLE

Leeson D, Fennell P, Shah N, Petit C, Mac Dowell Net al., 2017, A Techno-economic analysis and systematic review of carbon capture and storage (CCS) applied to the iron and steel, cement, oil refining and pulp and paper industries., 13th International Conference on Greenhouse Gas Control Technologies (GHGT), Publisher: ELSEVIER SCIENCE BV, Pages: 6297-6302, ISSN: 1876-6102

CONFERENCE PAPER

Leeson D, Mac Dowell N, Shah N, Petit C, Fennell PSet al., 2017, A Techno-economic analysis and systematic review of carbon capture and storage (CCS) applied to the iron and steel, cement, oil refining and pulp and paper industries, as well as other high purity sources, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 61, Pages: 71-84, ISSN: 1750-5836

JOURNAL ARTICLE

Marchesini S, McGilvery CM, Bailey J, Petit Cet al., 2017, Template-Free Synthesis of Highly Porous Boron Nitride: Insights into Pore Network Design and Impact on Gas Sorption, ACS NANO, Vol: 11, Pages: 10003-10011, ISSN: 1936-0851

JOURNAL ARTICLE

Marchesini S, Regoutz A, Payne D, Petit Cet al., 2017, Tunable porous boron nitride: Investigating its formation and its application for gas adsorption, MICROPOROUS AND MESOPOROUS MATERIALS, Vol: 243, Pages: 154-163, ISSN: 1387-1811

JOURNAL ARTICLE

Woodward RT, Jobbe-Duval A, Marchesini S, Anthony DB, Petit C, Bismarck Aet al., 2017, Hypercrosslinked polyHIPEs as precursors to designable, hierarchically porous carbon foams, POLYMER, Vol: 115, Pages: 146-153, ISSN: 0032-3861

JOURNAL ARTICLE

Hong J, Chen C, Bedoya FE, Kelsall GH, O'Hare D, Petit Cet al., 2016, Carbon nitride nanosheet/metal-organic framework nanocomposites with synergistic photocatalytic activities, CATALYSIS SCIENCE & TECHNOLOGY, Vol: 6, Pages: 5042-5051, ISSN: 2044-4753

JOURNAL ARTICLE

Le Calvez C, Zouboulaki M, Petit C, Peeva L, Shirshova Net al., 2016, One step synthesis of MOF-polymer composites, RSC ADVANCES, Vol: 6, Pages: 17314-17317, ISSN: 2046-2069

JOURNAL ARTICLE

Smit B, Graham R, Styring P, Yao J, Clough P, Lee J-SM, MacDowell N, Lyth S, Rochelle G, Hills T, Wilson G, Petit C, Kemper J, Cuellar-Franca R, Dowson G, Gazzani M, Fennell P, Sutter D, Scholes C, Azapagic A, Bell R, Gibbins J, Mazzotti M, Maitland G, Brandani S, Ocone R, Mota-Martinez M, Dunstan M, Liang P, Anantharaman R, Joss L, Stolaroff Jet al., 2016, CCS - A technology for the future: general discussion, FARADAY DISCUSSIONS, Vol: 192, Pages: 303-335, ISSN: 1359-6640

JOURNAL ARTICLE

Wang J, Petit C, Zhang X, Cui Set al., 2016, Phase Equilibrium Study of the AlCl3-CaCl2-H2O System for the Production of Aluminum Chloride Hexahydrate from Ca-Rich Flue Ash, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 61, Pages: 359-369, ISSN: 0021-9568

JOURNAL ARTICLE

Woodward RT, Fam DWH, Anthony DB, Hong J, McDonald TO, Petit C, Shaffer MSP, Bismarck Aet al., 2016, Hierarchically porous carbon foams from pickering high internal phase emulsions, CARBON, Vol: 101, Pages: 253-260, ISSN: 0008-6223

JOURNAL ARTICLE

Lin K-YA, Yang H, Petit C, Chen S-Yet al., 2015, Removal of oil droplets from water using carbonized rice husk: enhancement by surface modification using polyethylenimine, ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, Vol: 22, Pages: 8316-8328, ISSN: 0944-1344

JOURNAL ARTICLE

Lin K-YA, Yang H, Petit C, Lee W-Det al., 2015, Magnetically controllable Pickering emulsion prepared by a reduced graphene oxide-iron oxide composite, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 438, Pages: 296-305, ISSN: 0021-9797

JOURNAL ARTICLE

Park A-H, Gao M, Petit C, 2015, Chemical and physical characterizations of liquid-like nanoparticle organic hybrid materials (NOHMs) designed for CO2 capture and conversion, Publisher: AMER CHEMICAL SOC, ISSN: 0065-7727

CONFERENCE PAPER

Park Y, Lin K-YA, Park A-HA, Petit Cet al., 2015, Recent advances in anhydrous solvents for CO2 capture: ionic liquids, switchable solvents, and nanoparticle organic hybrid materials, FRONTIERS IN ENERGY RESEARCH, ISSN: 2296-598X

JOURNAL ARTICLE

Petit C, Bandosz TJ, 2015, Engineering the surface of a new class of adsorbents: Metal-organic framework/graphite oxide composites, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 447, Pages: 139-151, ISSN: 0021-9797

JOURNAL ARTICLE

Wang J, Li Z, Park A-HA, Petit Cet al., 2015, Thermodynamic and kinetic studies of the MgCl2-NH4Cl-NH3-H2O system for the production of high purity MgO from calcined low-grade magnesite, AICHE JOURNAL, Vol: 61, Pages: 1933-1946, ISSN: 0001-1541

JOURNAL ARTICLE

Lin K-YA, Park Y, Petit C, Park A-HAet al., 2014, Thermal stability, swelling behavior and CO2 absorption properties of Nanoscale Ionic Materials (NIMs), RSC ADVANCES, Vol: 4, Pages: 65195-65204, ISSN: 2046-2069

JOURNAL ARTICLE

Lin K-YA, Yang H, Petit C, Hsu F-Ket al., 2014, Removing oil droplets from water using a copper-based metal organic frameworks, CHEMICAL ENGINEERING JOURNAL, Vol: 249, Pages: 293-301, ISSN: 1385-8947

JOURNAL ARTICLE

Park Y, Petit C, Han P, Park A-HAet al., 2014, Effect of canopy structures and their steric interactions on CO2 sorption behavior of liquid-like nanoparticle organic hybrid materials, RSC ADVANCES, Vol: 4, Pages: 8723-8726, ISSN: 2046-2069

JOURNAL ARTICLE

Petit C, Park A-HA, 2014, Designing the next generation of CO2 capture solvents: Nanoparticle organic hybrid materials (NOHMs), 247th National Spring Meeting of the American-Chemical-Society (ACS), Publisher: AMER CHEMICAL SOC, ISSN: 0065-7727

CONFERENCE PAPER

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